Green Arabia: Ancient lakes and rivers discovered beneath the Arabian Desert
cosmosmagazine.com
Researchers have revealed the Arabian Peninsula’s green past. Though a desert today, ancient Arabia had lakes and rivers due to high rainfall.
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The original was posted on /r/todayilearned by /u/letoatreides_ on 2025-07-28 23:23:42+00:00.

Original Title: TIL that the Arabian desert was also once a lush, green savannah that supported large lakes and abundant wildlife. While it’s well known that the Sahara desert would go through wet and dry periods, there’s now strong evidence that this was also happening on the Arabian Peninsula.